Guess my HP level

[uniquesnd]

Going to get the car on the Dyno soon but wanted to see what people think it will put down. 2015 GT with Beefcake special stage 2 Paxton 2200 with max 57 bov, car sees 15.5-16.8 lbs of boost on 93+Octanium with the higher number being prevalent in the winter. Also have LTH’s no cats, Corsa sport exhaust, 2018 intake locked out, Comp cams stage 1 blower cams, innovators west balancer, CAI, DSS one piece driveshaft and PBH full billet 6r80 build with circle D 245mm 3C. I am
Hoping for 900 whp!

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[K4fxd]

GT350 IM would have been a better fit. I'll guess 800
EDIT
Wheel HP, I'm changing my guess to 750.

 

[Cobra Jet]

RWH: 819

No scientific or factual basis to that number chosen…. You said guess, there it is… which based on your mods, seems as it would be close.

 

[Cory S]

Will depend on Spark advance above 6000rpm.

The 6R80 will make it tough to hit an honest 900whp with less than 17.5psi and 21-22° of spark.

Plus, most dyno's will have a 2-5% variance from each other.

FWIW, my 6R80 car at 18psi and 21° of spark, does 855-860whp on E75-85. An MT82 setup would put that close to 900whp. My car traps 140-141mph @ 4090lbs.

My guess is you will be between 795-820 if you can see 18-19° on your 93+booster fuel.

 

[ice445]

920

 

[uniquesnd]

Bonus fact car killed 2 stock transmissions within a few days of being installed (broken intermediate shafts). This was with just a few street hits on each.

 

[Cory S]

Bonus fact car killed 2 stock transmissions within a few days of being installed (broken intermediate shafts). This was with just a few street hits on each.

I did that at 700whp. Shift pressures too high.

 

[uniquesnd]

Car was tuned by Lund, is that something they need to fix? I was always told everything looked good!

 

[Cory S]

Car was tuned by Lund, is that something they need to fix? I was always told everything looked good!

That’s up to you to decide whether the transmission is shifting too hard or not.

 

[uniquesnd]

That’s up to you to decide whether the transmission is shifting too hard or not.

it shifts firm but everything is billet now, intermediate, planetary, sun gear etc. so not sure if it’s even a worry anymore?

 

[Cory S]

it shifts firm but everything is billet now, intermediate, planetary, sun gear etc. so not sure if it’s even a worry anymore?

Shouldn't be. Nope.

 

[Strokerswild]

Eleventy billion.

 

[uniquesnd]

Eleventy billion.

 

[SolarFlare]

Not 900whp....breaking intermediate shafts isnt a sign of huge power, I broke mine under 700. My opinion? 740-760ish if all is in working order. What pulley?

 

[uniquesnd]

Not 900whp....breaking intermediate shafts isnt a sign of huge power, I broke mine under 700. My opinion? 740-760ish if all is in working order. What pulley?

3.6 pulley

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